Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution
This paper investigates the direction-of-arrival (DOA) estimation of electromagnetic pulse (EMP) sources in modern radar system and proposes a novel EMP DOA estimation method. The method is based on energy distribution and improves the low accuracy and high computational complexity of the convention...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2024/7998646 |
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| _version_ | 1832546183502888960 |
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| author | Weiyi Li Jian Chen Lin Lin |
| author_facet | Weiyi Li Jian Chen Lin Lin |
| author_sort | Weiyi Li |
| collection | DOAJ |
| description | This paper investigates the direction-of-arrival (DOA) estimation of electromagnetic pulse (EMP) sources in modern radar system and proposes a novel EMP DOA estimation method. The method is based on energy distribution and improves the low accuracy and high computational complexity of the conventional estimation method. According to the characteristics of the EMP signal, the frequency point where 90% of the signal energy is concentrated is considered as the critical frequency point. Before this point, differently sized frequency sub-blocks are determined depending on the energy. After the critical frequency point, identically sized frequency sub-blocks are chosen at equal frequency intervals for processing. The proposed method is compared with the representative EMP DOA estimation methods. Simulation experiments are carried out to validate the effectiveness of the proposed method. The results illustrate that the computational complexity is significantly reduced while the accuracy is improved compared to the conventional method. |
| format | Article |
| id | doaj-art-28d11c0555f64e82ae832efc587ba9ba |
| institution | Kabale University |
| issn | 1687-5877 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-28d11c0555f64e82ae832efc587ba9ba2025-02-03T07:23:36ZengWileyInternational Journal of Antennas and Propagation1687-58772024-01-01202410.1155/2024/7998646Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy DistributionWeiyi Li0Jian Chen1Lin Lin2College of Communication EngineeringCollege of Communication EngineeringCollege of Communication EngineeringThis paper investigates the direction-of-arrival (DOA) estimation of electromagnetic pulse (EMP) sources in modern radar system and proposes a novel EMP DOA estimation method. The method is based on energy distribution and improves the low accuracy and high computational complexity of the conventional estimation method. According to the characteristics of the EMP signal, the frequency point where 90% of the signal energy is concentrated is considered as the critical frequency point. Before this point, differently sized frequency sub-blocks are determined depending on the energy. After the critical frequency point, identically sized frequency sub-blocks are chosen at equal frequency intervals for processing. The proposed method is compared with the representative EMP DOA estimation methods. Simulation experiments are carried out to validate the effectiveness of the proposed method. The results illustrate that the computational complexity is significantly reduced while the accuracy is improved compared to the conventional method.http://dx.doi.org/10.1155/2024/7998646 |
| spellingShingle | Weiyi Li Jian Chen Lin Lin Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution International Journal of Antennas and Propagation |
| title | Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution |
| title_full | Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution |
| title_fullStr | Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution |
| title_full_unstemmed | Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution |
| title_short | Direction-of-Arrival Estimation of Electromagnetic Pulse Based on Energy Distribution |
| title_sort | direction of arrival estimation of electromagnetic pulse based on energy distribution |
| url | http://dx.doi.org/10.1155/2024/7998646 |
| work_keys_str_mv | AT weiyili directionofarrivalestimationofelectromagneticpulsebasedonenergydistribution AT jianchen directionofarrivalestimationofelectromagneticpulsebasedonenergydistribution AT linlin directionofarrivalestimationofelectromagneticpulsebasedonenergydistribution |